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2 201 398

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IPC

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Application

2001126406/12, 2001-09-28

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Start date

2001-09-28

(22)

Actual filing date

2001-09-28

(45)

Published

2003-03-27

(72)

Inventor

Kozyrev A.S.Timashov A.I.Zelentsov E.M.Stepanov G.I.Mikhajlova N.A.Romanov M.E.Korotkevich V.M.

(73)

Holder

Federal'Noe Gosudarstvennoe Unitarnoe Predprijatie Khimicheskij Kombinat"

METHOD OF DISSOLVING URANIUM OXIDES Russian patent published in 2003 - IPC

Abstract RU 2201398 C1

FIELD: nuclear fuels. SUBSTANCE: method useful in fuel cycle materials technology, in particular in enriched uranium production, consists in that powder of uranium oxides is placed under water layer at ratio of water layer height to height of uranium oxides at least 1.3. Nitric acid is then fed under uranium oxide layer at hourly nitric acid uptake 0.30-0.36 t per 1 t uranium. EFFECT: reduced volume of reactor-escaping gases to be treated and reduced nitrogen dioxide content in these gases. 2 cl, 1 tbl

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RU 2 201 398 C1

Authors

Kozyrev A.S.

Timashov A.I.

Zelentsov E.M.

Stepanov G.I.

Mikhajlova N.A.

Romanov M.E.

Korotkevich V.M.

Dates

2003-03-27—Published

2001-09-28—Filed